Messages in this thread |  | | | Date | Fri, 17 Mar 2006 10:15:32 +0100 | | From | Jes Sorensen <> | | Subject | Re: [patch] mspec - special memory driver and do_no_pfn handler |
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Benjamin Herrenschmidt wrote: >> Quite frankly, I don't think nopfn() is a good interface. It's only usable >> for one single thing, so trying to claim that it's a generic VM op is >> really not valid. If (and that's a big if) we need this interface, we >> should just do it inside mm/memory.c instead of playing games as if it was >> generic. > > Or just use sparsemem and create struct pages for your hw :) we do that > for SPUs on Cell, works like a charm.
Well then the question is, would it simplify the code using no_pfn in this case? Hacking up fake struct page entries seems even more of a hack to me.
Cheers, Jes
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